about de.arch

We create considered spaces that truely reflect our clients, delivering an elegant simplicity and timeless quality.


We specialise in residential, work place, commercial, retail design projects.

Lead by directors Peita De Trizio & Jessica Pile, our passion is simple; we always strive to create functional and considered spaces that truly reflect our clients, have an elegant simplicity, are timeless and unique, regardless of project size or budget.

pronounced 'de arc'

About de.arch - Melbourne Architecture
& Interiors studio

We love creating spaces that not only meet our clients’ needs but exceed their expectations. We enjoy working collaboratively with our clients and sharing the design process as we believe this achieves the most successful outcome. You can check us out on Houzz!

Our belief is that every project offers the opportunity to inspire, educate and excite our clients.

Whether it be a new home, renovation or internal refurbishment. This requires our highest attention at every stage but most importantly listening to and understanding the nuances of how our clients live and work. Most importantly, we love what we do!

To be able to change and improve the way a person lives or works in a space is very rewarding. We’re just as excited to see a project progress as you are, from initial butter paper hand sketches to 3D rendered images, to technical drawings to the final built form.

Our Team

About de.arch Peita

Peita De Trizio

Peita is the founding director and principal architect at de.arch pty ltd. With over 12 years’ experience working predominantly on single, multi-residential projects as well as commercial fitout projects, Peita brings expertise, insight and a unique perspective to each and every project. She looks to impart the value of architecture in others, encouraging a positive change in people’s lives through the design lens. Peita is passionate about educating her clients in the life cycle of a building project, which has been further strengthened by collaborations with consulting practices such as 'My Architect' - bringing the client and architect together in an often unknown environment to navigate.
About de.arch Jess

Jessica Pile

As the studio's co-director, Jessica brings over 12 years of architectural design and project delivery experience ranging from one off bespoke residential to low rise multi-residential, large scale commercial and retail developments, through to community, educational and recreational facilities. Her diverse background has given Jessica an appreciation of the high value that architecture can bring to a project regardless of scale, when the pragmatic requirements of a brief merge seamlessly with the experiential or ephemeral qualities of a space, resulting in spaces that inspire, energise and nurture. Jessica is also currently an APE Examiner for the Architects Board of Victoria.
About de.arch Josh

Joshua Cousins

Josh has demonstrated great enthusiasm for architecture which is pragmatic and functional yet compelling and harmonious. His passion comes from the belief that architecture can have a profound effect on your day to day life, physically and emotionally. With a keen design eye and attention to detail, Joshua is a talented designer and a valued member of the design and project delivery team.

Search dearch.com.au


Suite 307, 87 Gladstone Street
South Melbourne 3205